Microcharts

Microcharts is an extremely simple charting library for a wide range of platforms (see Compatibility section below), with shared code and rendering for all of them!

Gallery

Install

Available on NuGet

NET Standard 1.4, Xamarin.iOS, Xamarin.Android, UWP

Xamarin.Forms (.NET Standard 1.4)

Quickstart

1°) Your chart will need a set of data entries.

var entries = new[]
{
    new Entry(200)
    {
        Label = "January",
        ValueLabel = "200",
	FillColor = SKColor.Parse("#266489")
    },
    new Entry(400)
    {
	Label = "February",
	ValueLabel = "400",
	FillColor = SKColor.Parse("#68B9C0")
    },
    new Entry(-100)
    {
	Label = "March",
	ValueLabel = "-100",
	FillColor = SKColor.Parse("#90D585")
    }
};

2°) Instanciate a chart from those entries

var chart = new BarChart() { Entries = entries };
// or: var chart = new PointChart() { Entries = entries };
// or: var chart = new LineChart() { Entries = entries };
// or: var chart = new DonutChart() { Entries = entries };
// or: var chart = new RadialGaugeChart() { Entries = entries };
// or: var chart = new RadarChart() { Entries = entries };

2°) Add it to your UI!

Xamarin.iOS

public override void ViewDidLoad()
{
    base.ViewDidLoad();

    var entries = // ... see 1°) above
    var chart = // ... see 2°) above

    var chartView = new ChartView
    {
        Frame = new CGRect(0, 32, this.View.Bounds.Width, 140),
        AutoresizingMask = UIViewAutoresizing.FlexibleWidth,
        Chart = chart
    };

	this.View.AddSubview(chartView);
}

Xamarin.Android

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout 
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <microcharts.droid.ChartView
            android:id="@+id/chartView"
            android:layout_width="match_parent"
            android:layout_height="160dp" />
    </LinearLayout>
</ScrollView>

protected override void OnCreate(Bundle savedInstanceState)
{
    base.OnCreate(savedInstanceState);

    SetContentView(Resource.Layout.Main);

    var entries = // ... see 1°) above
    var chart = // ... see 2°) above

    var chartView = FindViewById<ChartView>(Resource.Id.chartView);
    chartView.Chart = chart;
}

UWP (Windows 10)

<Page
    x:Class="Microcharts.Samples.Uwp.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Microcharts.Samples.Uwp"
    xmlns:microcharts="using:Microcharts.Uwp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <microcharts:ChartView x:Name="chartView" />

</Page>

public MainPage()
{
    this.InitializeComponent();

    var entries = // ... see 1°) above
    var chart = // ... see 2°) above

    this.chartView.Chart = chart;
}

Xamarin.Forms

<ContentPage 
    xmlns="http://xamarin.com/schemas/2014/forms" 
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
    xmlns:microcharts="clr-namespace:Microcharts.Forms;assembly=Microcharts.Forms" 
    xmlns:local="clr-namespace:Microcharts.Samples.Forms" 
    x:Class="Microcharts.Samples.Forms.MainPage">

    <microcharts:ChartView x:Name="chartView" />

</ContentPage>

protected override void OnAppearing()
{
    base.OnAppearing();

    var entries = // ... see 1°) above
    var chart = // ... see 2°) above

    this.chartView.Chart = chart;
}

Xamarin.macOS

public override void ViewDidLoad()
{
	base.ViewDidLoad();

	var entries = // ... see 1°) above
	var chart = // ... see 2°) above

	var chartView = new ChartView
	{
       Frame = this.View.Bounds,
       AutoresizingMask = NSViewResizingMask.WidthSizable | NSViewResizingMask.HeightSizable,
		Chart = chart,
	};

	this.View.AddSubview(chartView);
}

Tutorials

• Video: Charts for Xamarin Forms by @HoussemDellai

Usage

Available charts are BarChart, PointChart, LineChart, DonutChart, RadialGaugeChart, RadarChart. They all have several properties to tweak their rendering.

Those charts have a Draw method for platforms that haven't built in views.

Compatibility

Built in views are provided for UWP, Xamarin.Forms, Xamarin.iOS and Xamarin.Android, Xamarin.macOS, but any other .NET Standard 1.4 SkiaSharp supported platform is also compatible (see one of the included ChartView implementations for more details).

About

This project is just simple drawing on top of the awesome SkiaSharp library. The purpose is not to have an heavily customizable charting library. If you want so, simply fork the code, since all of this is fairly simple. Their is no interaction, nor animation at the moment.

Contributions

Contributions are welcome! If you find a bug please report it and if you want a feature please report it.

If you want to contribute code please file an issue and create a branch off of the current dev branch and file a pull request.

License

MIT © Aloïs Deniel